| UWS脉冲雷达回波低信杂比识别检测算法研究 |
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| 引用本文： | 梁步阁,张光甫,袁乃昌.UWS脉冲雷达回波低信杂比识别检测算法研究[J].信号处理,2007,23(4):552-556. |
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| 作者姓名： | 梁步阁 张光甫 袁乃昌 |
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| 作者单位： | 国防科大四院微波技术发展中心,湖南长沙,410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | UWS脉冲雷达属于全新体制的雷达系统,低信杂比信号检测是系统关键性技术之一。现有雷达采用的相关检测理论,不适于UWS脉冲雷达系统。通过对脉冲雷达接收信号的时域特征分析,提出波形特征矢量提取及双门限识别检测理论,给出了详细的理论分析和实际算法的实验效果。基于识别检测思想,将信号检测与特征识别进行有机结合,有效减少了数据处理步骤,对于波形保真、快速处理等具有较大优势,为远距离UWS脉冲雷达的工程化实现提供了一定的理论基础。
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| 关 键 词： | 脉冲 特征 信杂比 时域 检测 |
| 修稿时间： | 2005年11月29 |
Detection Method of Low-SNR Echo by Feature Recognition in UWS Impulse Radar Systems |
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| LIANG Bu-ge,ZHANG Guang-fu,YUAN Nai-chang.Detection Method of Low-SNR Echo by Feature Recognition in UWS Impulse Radar Systems[J].Signal Processing,2007,23(4):552-556. |
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| Authors: | LIANG Bu-ge ZHANG Guang-fu YUAN Nai-chang |
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| Abstract: | UWS impulse radar,a novel kind of radar,in which,detection of low SNR radar echo is a key technology.Current de-tection theory by correlation,is not suitable for this type of radar.After analysis time-domain feature of impulse radar echo signal,double-threshold recognizing detection theory is presented.A detailed theory model is realized,and the arithmetic' s performance in tests is giv-en.Data procession steps are decreased,through combining recognition and detection,based on this theory.It is good for echo waveform keeping and process velocity advancing.A theory basement is founded,for UWS impulse radar' s realization. |
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| Keywords: | Pulse Feature SNR Time-domain Signal detection |
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